From owner-freebsd-current@FreeBSD.ORG Sat Jun 12 05:07:09 2010 Return-Path: Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7CB981065677 for ; Sat, 12 Jun 2010 05:07:09 +0000 (UTC) (envelope-from dougb@FreeBSD.org) Received: from mail2.fluidhosting.com (mx21.fluidhosting.com [204.14.89.4]) by mx1.freebsd.org (Postfix) with ESMTP id 01E368FC14 for ; Sat, 12 Jun 2010 05:07:08 +0000 (UTC) Received: (qmail 6968 invoked by uid 399); 12 Jun 2010 05:07:07 -0000 Received: from localhost (HELO foreign.dougb.net) (dougb@dougbarton.us@127.0.0.1) by localhost with ESMTPAM; 12 Jun 2010 05:07:07 -0000 X-Originating-IP: 127.0.0.1 X-Sender: dougb@dougbarton.us Message-ID: <4C1315F9.6000300@FreeBSD.org> Date: Fri, 11 Jun 2010 22:07:05 -0700 From: Doug Barton Organization: http://SupersetSolutions.com/ User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.9.1.9) Gecko/20100330 Thunderbird/3.0.4 MIME-Version: 1.0 To: "M. Warner Losh" References: <20100611.132052.271446115462387749.imp@bsdimp.com> <20100611203544.GA1797@hoeg.nl> <4C129ECE.8040709@FreeBSD.org> <20100611.151802.59640143227153045.imp@bsdimp.com> In-Reply-To: <20100611.151802.59640143227153045.imp@bsdimp.com> X-Enigmail-Version: 1.0.1 OpenPGP: id=1A1ABC84 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-current@FreeBSD.org, ed@80386.nl, andreast-list@fgznet.ch Subject: Re: How to disable CLANG & co build in buildworld? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Jun 2010 05:07:09 -0000 On 06/11/10 14:18, M. Warner Losh wrote: > "This" is building the proper set of tools for the target. It is easy > to do, and only a couple lines of Makefile foo in Makefile.inc1 > instead of in bsd.own.mk. It is a fairly natural consequence of the > tbemd stuff I have been working on and have started merging. > > The consequences today are that you build some extra tools that are > only needed to build clang when in fact you aren't really going to be > building clang. The "cost" is however long it takes to do this on the > platform you are building on. This can range from a minute or two to > tens of minutes depending on the power of your build system. Ok, obviously I'm dense because I didn't understand an answer to my question anywhere in there. :) So let me try again. Why are we not optimizing for the common case, where the world is built on the system it's going to run on, which means that WITHOUT_CLANG can easily mean exactly that? Doug -- ... and that's just a little bit of history repeating. -- Propellerheads Improve the effectiveness of your Internet presence with a domain name makeover! http://SupersetSolutions.com/